Parker Hannifin 4123-PA - Manual (Page 2)

Introduction
Parker 60 Series spring return (AC/AO) or double acting (AD) rack and pinion actuators are compact, simply designed
devices that are quality engineered to provide high torque outputs and a high cycle, trouble-free life.
A compact, dual opposed rack and pinion design and guide band suspension combine to produce a symmetrically balanced,
center mount actuator. In addition, the actuator has a short powerful stroke, rapid response, and fully concentric operating
load capability which ensures optimum performance.
Features
• Three point suspension system uses carbon filled
PTFE guide bands for piston alignment and rack support
• Dual opposed piston design uses air pressure on
two pistons to deliver a balanced force to the pinion gear
• Patented balanced piston design results in even
distribution of bearing loads and eliminates piston tilting
• Multiple spring concept permits actuator use at
40 to 120 psig (2.8 to 8.3 bar) air supply requirements
• Suitable for use with dry or lubricated air, non-corrosive
gas, or light hydraulic oil
• Aluminum alloy body construction with two component
polyurethane coating
• Manual override
Specifications
Operating Pressure
90˚ Models:
40 to 120 psig (2.8 to 8.3 bar) maximum
AC – Normally Closed Spring Return
AD – Double Acting
AO – Normally Open Spring Return
180˚ Models:
80 psig (5.5 bar) maximum
ACX – Spring Return
ADX – Double Acting
Temperature Range
-4 ˚F to 175 ˚F (-20 ˚C to 79 ˚C)
Optional high and low temperature ranges available
Options
• Solenoid valve
• Rotary limit switch with valve position indicator
• Breather block
• Dual mount actuator
61S Option
• Compact single piston design
• Available for MB, HB, B2, and B6 Series Valves
Operation
Actuators are manufactured with an integral air
manifold and internal porting. The air manifold is
designed for direct mounting of solenoid valves.
This eliminates the need for external tubing and
simplifies installation. For applications not requiring
a solenoid valve, the air manifold inlet ports are
marked “A” and “B”. Air inlet port “A” will rotate the
actuator counter-clockwise. Spring return actuators
fail clockwise.
Model Shown: 4Z-B6LJ-V-SS-61AD
Parker Hannifin Corporation
Instrumentation Valve Division
Jacksonville, Alabama
Pneumatic Actuators
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